Brooder stove



Jan. 29, 1929.

J. B SMITH BROODER STOVE 2 Sheets-Sheet 1 1 w, 15 I 04 I I +6 0" 26' T LIE 7 w 87 6 a adwmqo Jan. 29", 1929.

J. B. SMITH BROODER STOVE Filed April 25. 1927 2 Sheets-Sheet 2 v 4 w MW .5 Wm a witness Patented J an. 29, 1929.

UNITED STATES PATENT OFFICE.

JOSEPH B. SMITH, OF SALT LAKE CITY, UTAH.

BROODER STOVE.

Application filed April 25, 1927.

The invention relates to improvements in heaters designed primarily for poultry brooders.

It the principal aim of the invention to provide a novel form of heater 1 n which dampers controlling the draught air to the fire and a damper in the smoke outlet, are automatically controlled by means of a thermostat and operating connections between said dampers and said thermostat.

It is a further object of the invention to provide a construction which is rather simple and inexpensive, yet Wlll be efiicient, reliable and in every way desirable.

lVith the foregoing in View, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanymg drawings.

Fig. 1 is a front elevation with the hover in section.

Fig. 2 is a front elevation with part of the hover and the air heating drum in section.

Fig. 3 is approximately a complete sectionai view, although certain parts are broken away and other parts shown in elevation.

Fig. 4 is a vertical sectional view on line 44 of Fig. 1.

Fig. 5 is a horizontal section on line 5-5 of Fig. 4.

Fig. .6 is a horizontal sectional view on line G6 of Fig. 3.

In the drawings above briefly described, 7 designates the base of the stove supportlng the ash pit 7 a from which the substantially 1 cylindrical body 8 rises, said body having a fuel inlet door 9 at any suitable point and being provided also with an appropriate grate 10. 11 denotes a door for removlng ashes from the pit 7 a and it will be understood that the bottom of this pit is spaced above the brooder floor by the base 7, so that there is no danger of fire. Moreover, this base is formed with openings 12 which permit passage of air under the ash pit, keeping the same comparatively cool.

The stove is provided with two downdraught passages 13 whose lower ends open under the grate 10. The upper ends of these passages are controlled by two dampers 14 carried by the outer ends of a pair of levers 15, these levers being suitably fulcrumed at 16 upon the upper end of the stove. The inner ends of the levers 15 are pivotally connected with each other at 17, and appropriate connecting means preferably comprising a link Serial No. 186,409.

18 rises from this pivotal connection 17, to an operating arm 19 projecting forwardly from a suitable damper assembly 20 which is disposed in the smoke outlet pipe 21, said damper assembly being preferably of the same construction as that described in the pending application above referred to.

A lever 22 is mounted between its ends" upon one of the fulcrums 16 and has its inner end connected by means of the connection 17,

and downwardly moving it upon increase.

Thus, the thermostatic means 27, the arm 25. the rod 23 and the lever 22, act as automatic control means for the levers 15 and the connecting means 18, which parts operate the dampers 14 and 20 respectively. Hence, the supply of draught air to the fire is automatically controlled and the draught checking damper in the smoke outlet is similarly operated.

The stove body 8 is provided near its upper end with an upwardly facing ledge 29 upon whioha metal ring 30 rests, said ring being notched as indicated at 31, to receive the down draught passages 13. Secured to this ring 30, is a frusto-conical hover 33 which terminates in a plane above the lower side of the base 7 so that it will be spaced from the floor of the brooder house or the like.

Under the hover 33, the body 8, the ash pit 7 and base 7, are surrounded by what I term a duplex drum 34. This drum is provided with a fresh air inlet pipe 35 which may lead thereto from any desired point outside of the building in which the heater is used. The air entering the drum through this pipe is effectively heated and is discharged under the upper portion of the hover 33, in which it spreads out and serves to effectively keep .the chicks at a safe temperature.

The front of the drum 34 is formed with an opening 36 giving access to the door 11, and the lower end of said drum is by preference formed with notches 37 which permit passage of air into it from the space beneath the hover 33, so that in addition to heating the fresh incomingair from the pipe 35, the drum 34 re-heats air beneath the hover, as it gradually cools and settles to the floor.

In the present showing, the drum 34,- is held in desired spaced relation With the stove, by appropriate brackets 38 which may be secured to both of them, but it is to be understood that the present application is for the purposeot protecting the novel arrangement of dampers and operating means therefor, rather than-any specific details of drum construction.

I claim:

1. A heater comprising a stove having a ClOWIl draught, passage \vhose inlet end is disposed at the upper end of the stove, said stove being also provided with a smoke outlet passage rising from its upper end, a damper for controlling said inlet end of said down draught passage, a horizontal lever fulcrumedf between its ends upon the upper end of the stove and carrying said damper at its outer end, a second lever fulcriimed upon said upper end of the stove and connected With the inner end of the first named lever, a thermostatically operated member mounted at the exterior of the stove below the aforesaid levers, connecting means between said thermostatically operated member and the outer end ofthe second named lever, a seconddamper for the above named smoke outlet passage, and connecting means between said second damper and the inner ends of the aforesaid levers.

2. A heater comprising a stove having on each side thereof oppositely disposed downdraught passages, Whose inlet ends are disposed at the upper end of the stove, a smoke outletcommunicating With the upper end of the stove, air cont-rolling dampers for opening and closing the inlet ends of said downdraught passages, a damper operating lever for each of said dampers, said levers being pivotally mounted between their ends on the upper end of the stove and pivotally connected together at their inner ends, the outer ends of said levers being'connected to said dampers, a smoke outlet pipe connected with the top of the stove, a damper in said pipe, an arm projecting outwardly from said damper,

link pivotally connected at one end to the outer end of said. arm and at its other end to the pivotal connection of the inner ends of said levers,j-a third lever pivotally mounted between its ends on the fulcrum of: one of said damper levers'and pivotally connected at its inner end to the pivotal connection of said damper levers and link, thermostatic means arranged at one side of the stove, and an adjustable rod pivotally connected at its upper end to the" outer end of said third lever and at its lower end to said thermostatic means.

In testimony Wl1GI80ff,-I have affixed my signature.

JOSEPH B. SMITH. 

